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>> shannon: about 30,000 different people but they track there, preprint, knock on the peer review yet, but it talks about the increased risk of infection with the new variant. it's as we find evidence for an increased risk of an infection by the beta, gamma, or delta variant compared to the alpha variant after at the vaccination. then they said in contrast the vaccine-induced immunity no increased risk for reinfection with beta, gamma, or delta variance relevant to alpha variant individuals with infection induced immunity. so prior infection. here is something that dr. fauci said tonight on t...

With beta and gamma, but when they were around they challenging the vaccine protection. you did not often get protected by the vaccines. yesterday vermont reported the highest number of hospitalizations in the entire pandemic and they're the most vaccinated state right now. it made up a high enough number still that it caused a serious problem. that will be amplified with the new variant. we just need people to be vaccinated. we don't need more information to know that that can have a major impact on delta and omicron. >> i have long been a believer that hospitalizations are a more relative st...

Previous studies of vaccines that were done in south africa and south america earlier this year where there was at that time the beta and gamma variants circulating, these were two that had the same types of mutations that we now see on this new variant. and in both of those instances, vaccine protection was reduced substantially in terms of infection. but at the same time, it showed that you could reduce substantially the number of people who got seriously ill or hospitalized and die. so even using the current vaccines, if you are fully vaccinated, you are standing a much better chance of not...

How does that immunity that is developed from having had the infection match up against omicron versus, let's say, the delta variant or gamma or mu? >> so, we don't know that -- the answer to that specific question yet, but what we do know is that the -- the original premise for that supposition is just wrong. it simply isn't true that immunity conferred by infection is in general better than immunity conferred by vaccination. what we doe know is that immunity that's conferred by prior infection is very variable. some people have great immunity. some people have little or no immunity at all. i...

Theories. the world health organization naming the new covid variant omicron last week the south african government warned that the world should be aware of this variant. it was first detected there earlier this month. of course, this is far from the first variant we have seen emerge. and, quite honestly, it is not unexpected. this is what viruses do. they mutate. we have already cycled through the alpha variant that came out of the united kingdom late last year. beta first detected in south africa, gamma emerging from brazil. and of course delta first documented in india which has become the ...